International Business Machines Corporation

Tony Jing Zhang

Steven Douglas Johnson

Edward George Butt

David N Mora

Jed L Dyreng

Jeffrey E Ferrier

Michael Paul Groover

Mark McMaster

Ronald David Martens

Glenn Paul Gee

Soo-Choon Kang

Robin Han

Cindy K Hoac

Provided are a computer program product, system, and method for performing code load operations on managed components in a system. A first node group comprising at least one computational node in the computer system performs code load operations for the managed components. Status of the code load operations at the managed component is written to a status data structure while the code load operations are being performed at the managed component. The first node group transfers control of the code load operations for the managed components to a second node group comprising at least computational node in the computer system while the code load operations are occurring at the managed components. A second node group reads the status data structure for the managed components to determine the status of the code load operations and continue the code load operations at managed components.

Performing code load operations on managed components in a system

A technique for updating elements in a data storage facility, including a single server or a multi-server system, such as by providing updated internal code packages to the elements. The update is performed using a fixed state machine, where the elements are updated in a coordinated manner within the constraints of the state machine. In a multi-server device, code packages are distributed to elements associated with the different servers in one traversal of the state machine, during distribute states of the state machine. The distributed code packages are activated in activate states of the state machine in multiple traversals of the state machine, so there is a serial activation. The code packages can be grouped in a flexible way by configuring an external update bundle used by the state machine. The distributing of the code is based on the grouping.

Updating elements in a data storage facility using a predefined state machine, with serial activation

A slider air bearing design and method providing &ldquo;writing of laser field&rdquo; (WOLF) measurement without substantial fly height affect. A central pad at ion-mill height is formed in the cavity between the side rails and rear pad. The central pad allows correlation of WOLF crown measurement values with crown measurements obtain via optical interferometer. Also, the central pad provides good reflective areas while preventing degradation in fly height performance due to the rear pad geometry constraints required by the WOLF measurement process.

Slider air bearing design and method providing writing of a laser field (WOLF) measurement without substantial fly height affect

A number of transducers are produced on a substrate, the transducers positioned on the substrate in non-linear rows. The substrate is then sliced into rows. Each row is then lapped with a curved lapping plate. Finally, each row is sliced into individual sliders, each slider now having an air bearing surface with non-zero camber.

Non-linear transducer lay-out of thin film head wafer for fabrication of high camber and crown sliders

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Tony Jing Zhang